Development and optimization of furrow opener for planting of seed spices

Depth of sowing for seed spices are kept very shallow (1 to 3cm). Therefore, furrow openers commonly used in seed drills or planter are not very well suited for sowing of seed spices. Some of the spices seed e.g. cumin, coriander and fenugreek are highly sensitive to germination, if proper depth of sowing is not maintained. Even a small layer of soil over the seed affects the germination.